Saw filing machine



4 Sheets-Sheet, l

J. JUDT SAW FILING MACHINE Filed June 19, 1929 ll-Ili Aug. 4, 1931.

Aug. 4, 1931. J, Jun-r 1,817,082

sAw FILING MACHINE Filed June A19. 1929 4 Sheets-Sheet. 2

7i l M55 a J Aug. 4, 1931. J. JUDT SAW FILING MACHINE Filed June 19.1929 4 Sheets-Sheet. 3

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Patented Aug. 4, 1931 PATENT OFFICE JOSEPH JUDT, OF CHICAGO, ILLINOISSAW FILING MACHINE Application filed June 19, 1929. Serial No. 372,127.

This invention relates to a new and improved device for tiling andsetting saw teeth,

One of the objects of my invention is the provision of' a device of theabove character vhich is so constructed and arranged that the teeth ofvarious types of saws may be simultaneously filed and set to the properangle relative to the. body of the saw.

Another object of the invention is the provision of a saw filing andsetting device which is so constructed that the same may be readilyadjusted to accommodate saws of various styles and operate upon thedifferent styles and types in a similar manner together with novel meansfor clamping the didier-ent type saws in proper position.

A further object of the invention is the provision of a device of theabove character having novel means for advancing the saw blade as theteeth are sharpened and set so as to consecutively operate on the teethand novel means for adjusting the setting device for setting teeth ofdierent sizes.

A still further object of the invention is the provision of a device ofthe above character including novel means for clamping the saws inposition and includes adjustable means for accommodating saw blades ofdifferent widths.

Vith the above and other objects in view the invention consists in thenovel features of constructiom the combination and arrangement of partshereinafter more fully set forth, pointed out in the accompanyingdrawings, in which:

Figure 1 is a. front elevation of my improved saw filing and settingdevice.

Figure 2 is a detail section on the line 2 2 of Figure 1.

Figure 3 is a vertical section on the line 8 3 of Figure 1.

Figure 4 is a detail section on the line 4 4 of Figure 8.

Figure 5 is a side elevation of the filing and advancing dise with partsthereof broken away and shown in cross section.

Figure 6 is a detail section on the line 6 6 of Figure 5.

Figure 7 is a detail section on the line 7 7 of Figure 5.

Figure 8 is a detail section on the line 8 8 of Figure 5.

Figure 9 is a detailed enlarged section on the line 9 9 of Figure 3.

Figure 10 is a detail section on the line 10 1O of Figure 3.

Figure 11 is a detail section on the line 11 11 of Figure 1.

Figure 12 is a detail section on the line 1Q 1:2 of Figure 11, and

Figure 13 is an enlarged detail section of the means for clamping acircular saw in position.

Referring more particularly to drawings wherein I have illustrated themain embodiments of my invention it will be noted that the entire deviceis mounted upon a suitable frame 1 that may be constructed in a suitablemanner for supporting the operative parts of my device. One of thehorizontal pieces at each side of the frame extends a suitable distancebeyond the uprights and forms suitable guide arms 2 for the movable basepiece 3 of the saw supporting frame which includes the spaced channeleduprights 4.

The saw supporting frame is mounted for both longitudinal and lateraladjustment and also for slight swinging movement on the pivot pin 5. Thetransverse bottom member 6 of the saw supporting frame is slotted andthe slot is aligned with a slot in the pin 5 to receive the lockingwedge 7 to securely hold the saw frame against lateral and rotativemovement. This wedge 7 after being placed in position is securelyengaged with the base member 3 by the cam action of the rotative camhead 8 acting upon the head of the pivot pin 5 and a washer 9 betweenthe cam head and the lower face of a transverse plate 10 supported atits ends by the arms 2. A set screw 11 carried by pin 5 also serves toretain the wedge 7 against movement.

Attached to the lower face of the base member 8 is a rack bar 12 engagedby a pinion 13 on the inner end of the shaft 14 and on the outer end ofshaft 14 is a finger wheel 15 whereby the shaft may be rotated to movethe base member laterally of the frame 1.

It will be noted that the shaft 14 is mounted in a suitable bearingsupported by one ol' the armsV 2. Slidably mounted upon the upper taceof base member 3 is a rack bar f 16 the inner' end of which is connectedt0 the base piece 6 and cooperates with a pinion 17 on the inner end ofshaft 18. The Shaft 18 is mounted in al suitable bearing on the upperace'ot the arm 2 on which'the shaft *f 14 is mounted and the outer endof this shaft 18 carries a hand wheel tor rotating pinion 17 to adjustthe saw supporting frame toward and away from the frame 1.

Slidably mounted in the channeled uprights 4 is arack bar 19 engaged bya pinion 20- rotatably Summits@ by the upright-S. 4 whereby the rack'bar may be readily raised. and'lowered. Thesaw clamping means comprisesthe spaced inverted; Ul-'shaped members grooves in the guide plates 22and'23, Slidably mounted in suitable grooves in theopposed faces of theplates 24 are the supporting blocks 26 for ei'i'gaging the inner or backedge of the saw to support the same in proper 'il position toY be filedtandsejt.v These blocks 26y are connected tlie'adjusting screws 27threaded through ther depending brackets23 carried by Aone of the plates24. Thelower yends ofthese screw carrie-d ringer pieces for rotating.the same.

Pivotally connectedl to the outer :tace of downwardly there plate 23fanddepending y from is av Asupporting palate. 29v which' isconnectedvtolthejrack bar 19 by meansot the ad instable screw 3Q andplate 29 is maintained in spaced relation with the raclrbar 191 by`meansoA a., sleeve 3,1 mountedonthe setscremx.`

and disposed between the pla-.te 29,V and rack bar 19,' The lowerclll ofthe platel 29 is 'formed with aI slot and arranged thereinE a taperedlug` 32.` engaging a recess in. rackA 19 to", assure posi tivemovementof the plaie 294 and inemberscarried thereby when move-v ment isimparted to the rack x bar.

Depending fromm@ lQWGr edgesof plates 24 arethe brackets whiclrterminteat their` lower ends into spaced arms34 connectedl atl theirv outer endsbyv means ot afspacing-bloekV 35. An adjusting bolt 36 extendsthrough M7the arins 34 at their Lippen ends and anoperating` handle 37 is threadedonto the boltl whereby to move said arms toward each other. These arms34 are moved toward each other. Thesel arms 34 are moved` toward andawaytromeach other tortlie pur,-

pose of: clamping the saw between'theplates 24. The armsi34, arenormally urgedfapart brule-ans. QfaCQl Spring 38 luelmtedupen..

bolt 36fand bearing againstarms 36 as shown in Figure Frointheaboveitwill be ap-f parent that by rotating` pinion 2() and moving rack bar 19the entire saw clamping means may be readily adjusted verticallyrelative to the `frame member 1.

As a general rule most cross cut saws are either tapered or roundedtoward their ends and in order totilt the clamping plates 2 4 to bringthe teeth atthe ends of the saws into engagement with the iiling andsetting means the guide plates 22 and 23 and plates 24 are rocked uponthe pivot pin 29. Depending from plate 23 are spaced arms 39 supportingat their lower ends a cross piece 40 formed with an arcuate slot 41adapted to receive a set screw 42 which extends through plate 29.Threaded on thev end of the set screw 42 and engaging plate 29 is aclamping lever 43 which can be screwed down tight for retain,- ing theguilde and clampingplates in adjusted positions.v

The saw filing or sharpening and advancing means includes al disc 44 oneedge. of which is slotted inwardly to the center of the disc to torinasubstantially arcuate shaped pocket 45 in which is arranged the web 4 6VorP the arcuate shaped emery or sharpeningmein-v ber 47. The web 46 isformed with a central extension having a slot 48 adapted' to receive oneof the screws 49 which are used to tighten the spaced walls of thepocket 45 onto the web. From this it will be apparent that the. member47 is securely held in, place relative to the disc44.,

rllhe arcuate guideor advancing plate 50gis supported at eachend bymeans ot the adj ustable blocks 51 tor-medv at one end with lvfshapednotches to receive the ends of'plate 50 andv are adjustably mounted:onscrews 521carried by brackets 53` which in turnareattached tothefdiscs44 whereby the ends O the plate i 50. @au be mo'refljfeward@edema from. the dise 44pm.- accordance. with the,A amount of ad;kvanceinent ofthe saw blade required The ends ofthe plate 50 are providedwith slots 54 to receive the detachable studs 51.5' boltedL to thediscs.v Spaeed'/ internally threadedY lugs 56 are, Carried' ler niet@50a-11d adiustably mounted in these4 lugs are e the yset screws 57 theyinner ends of'whichengageopposite.sides ofthe studs to move the endsotvplate 5 0 towardand away from theends ofjthe'emery or sharpeningmember47lto properly position the samerelative` the endsoi'Vvniemloerp47V so that member 47' will engage the prvopertooth ot the sawbladeV at the proper time;

In order to set the teeth tov the; lproper angle directly after filing?,0,1' Sharpening@ provide suitable mechanism mounted' adjacent, the disc44v and include a supporting trame comprising spaeed parallfelupriglits53 mountedvnihe freni@ 1.-4 EXtendnshetwen. the uprights 58 are aplurality ot" spaed guide slots 59 and 60 arrangedfinvw pairs,- asshown, withthe pair ofx slots 593arrangednear the upper ends of theuprights vwhile the slots comprise two pairs arranged adjacent the lowerends of the uprights.

Slidably mounted upon the spaced pairs of slots are the sleeves 61, 62,and 63, the sleeve 61 carrying a set screw 64 adjustable therethroughand connected at its inner end to a coil spring The outer end of spring65 is connected to the upper end of a pivoted arm 66, the pivot point ofwhich is adjacent the lower end of the same as shown at 67. This pivotpoint 67 is at the outer end of the U- shaped member 68 which isadjustably supported on the bracket 69 which is adj ustably :mounted onthe transverse bar 7 O, secured to the frame 1.

The upper end of the bracket is arranged at right angles to form aiiange 71 formed with a threaded perforation in which is adjustablymounted a set screw 72 connected to the head 73 of pin 74 that operatesin a slot 75 longitudinally of bracket 69 and slots 76 ez;- tendinglongitudinally in the arms of the U- shaped member 68. From thisstructure itV will be apparent that arm 66 can be adjusted laterally aswell as vertically to accommodate the same to the different size teethon the various types of saws. Connected to the inner end of the U-shapedmember 68 is a set screw 77 which is adjustably mounted in the sleeve 62on one pair of the slots 60 whereby the member 68 can be readilyadjusted laterally for properly positioning the arm 66. The bracket 69is laterally adjusted by means of a screw bolt 69 that is adjustablymounted on frame 1.

Adjustably mounted in sleeve 63 is a set screw 78 connected to the innerend of a bar 79 the outer end of which is forked, with the extremitiesof the forked part rounded oif for engagement with the saw teeth andcooperate with the lower end of arm 66 to set the teeth to the properangle. In order to maintain bar 79 in the proper horizontal plane anangle bracket 80 is carried by the i U-shaped member 68 and looselymounted in the horizontal portion of this bracket is a bolt 81 the lowerthreaded end of which is adjustably connected to bar 79 and mounted onthis bolt is a coil spring 82 disposed between. bar 79 and member 68 fornormally maintaining the head of bolt 81 seated on the horizontalportion of bracket 80.

The arm 66 is rocked upon the pivot point 67 for causing the lower endthereof to strike against the outer face of the saw teeth to forcibly'engage them with the forked outer end of the bar 79 whereby to properlyset the teeth to the desired angle. In order to cause rocking movementof arm 66 at predetermined intervals a grooved cam member 83 is mountedon the shaft 84 which rotatably supports disc 44 and the parts carriedthereby. The shaft 84 is mounted in suitable bearings at the upper endof frame 1. The arm 66 is received in the circumferential groove formedin cam 88 to retain the same against lateral movement relative the cam.

The cam 83 is keyed to the shaft 84 to rotate therewith but mounted toslide on the shaft so that it can be adjusted toward and away from thedisc. For adjusting the cam axially on shaft 84, a collar 85 is fixed tothe shaft 84 in spaced relation to the cam 83 and carried by collar 85is a set screw 86 fixed against longitudinal movement relative collar 85and adjustably connected to the cam 88 whereby turning movement of theset screw will readily move cam 83 along the shaft 84. For impartingrotative movement to shaft 84 a pulley 87 is connected to one endthereof and power may be applied to the pulley in any desired manner.

In using my improved device a saw is clamped between the clamping platesand the blocks 26 adjusted to engage the back of the saw blade to holdthe saine in position so that the teeth are arranged to be engaged bythe einery 47. [is the disc revolves the plat-e 50 will engage the teethof the saw for moving the saw and plates 2J longitudinally between guideplates 22 and 28. Simultaneously with the liling or sharpening of thesaw teeth they are set through the movement of arm 66 operated by cam 83on the shaft 84.

In Figure 13 I have illustrated that part of my improved device which isused for securing a circular saw in position to be operated upon by thesharpening member 47. In this form of the invention the cup like member88 is used to form an engaging surface for a circular saw 89. The cupmember 88 has an integral set screw threaded into a bearing block 90 onrack bar 19. Circular saws are usually formed with a central openingwhich will receive the conical bearing and supporting element 91 which.is detachably secured to the upper end of a laterally adjustable plate92.

The plate 92 has a transverse opening below cone member 91 to receivethe smooth shank portion of an adjusting' screw 93 thc inner end ofwhich is threaded into a threaded bore 94 in rack bar 19 and the outerend of screw 93 carries a thumb wheel 95 for readily adjusting saidscrew to move the cone 91 into engagement with the saw.

It will be apparent from the foregoing description that the parts of myimproved device are so constructed and arrangedthat they may be readilyadjusted to accommodate the same to saws of various sizes and shapes andthe filing or sharpening of the teeth may be adjusted so that everyadjacent tooth may be sharpened or every other tooth may be sharpenedand the teeth set to the desired angle after being sharpened.

Claims:

1. In a device of the class described, a supporting frame, a sawsupporting frame mounted on the first frame for movement in- Idependentthereof7 a saw clamp mounted for vertical adjustment lin the sec-0ndframe,

movably mounted supporting blocks adjustabley in said clamp forengaging.` a saw in the ciampor supporting saws of different` Widthsmeans for mounting said clamp for'. longitudinal movement,y a movable'Sharpener for engaging the teeth ofV asaW in the clamp,

and. means movable With the Sharpener for imparting longitudinalmovementto the Saw.

2. In adeviee of the dass described7 a supporting frame, al saw clampsupporting frame, a saw. clamp supportingv member mounted for verticaladjustment in` saidsaw clamp. supporting frame-,a saw clamp mou-nted insau'ldl supporting member tor longitudinal movement, adjustable means.fon mount.- ing saws of different Widths in said el-amp,

a rotatably. mounted sharpen-inn: member abovey said clamp for engagingthe teeth ot a saw inthe elamlnand-means rotatable With said sharpeningmember for engaging the saw teeth. to impart longitudinal movement tothe saw upon each revolution of the sharpening member.

In Witness WhereofI have hereunto set my hand this 29thday ofMay, A. D.1929.

JOSEPH JUBT.

